Mantle support



H. RINNMAN MANTLE SUPPORT Oct. 10, 1939.

Filed 0012. 13, 1937 Patented Oct. 10, 1939 PATENT OFFICE Y MANTLE SUPPORT Harry Rinnman, Berwyn, Ill., assigner to Universal Mantle, Inc., Brookfield, Ill., a corporation of Illinois Application October 13,

10 Claims.

The principal object of this invention is to provide a combined mantle support and burner cap for application to a blue-dame lamp of the wick type, which unit can be readily applied, will give excellent illumination, and is considerably less expensive to manufacture than other units of a similar character now on the market. The improved unit can be applied advantageously to the gallery of a lamp of the construction shown in Davis Reissue Patent No. 18,061, in place of the unit shown in that patent, but it is not limited in its use to such a gallery, as certain features of the invention are of much more general application.

While the foregoing statements are indicative of the nature of the invention, other objects and advantages will be apparent to those skilled in the art upon a full understanding of the construction, arrangement and operation of the parts forming the unit.

A preferred embodiment of the invention, and a few modifications thereof, are presented herein for the purpose of exempliiication, but it will of course be appreciated that the invention is susceptible of embodiment in still other structurally modified forms coming equally within the scope of the appended claims.

In the accompanying drawing:

Fig. l is a vertical diametric section through a lamp equipped with the new unit;

Fig. 2 is a side View of the unit by itself;

Fig. 3 is a horizontal section through the lamp, taken on the line 3--3 of Fig. 1;

Fig. 4 is a vertical diametric section through the lower portion of a modified form of the unit;

Fig. 5 is a fragmentary side view of the modied unit shown in Fig. 4;

Fig. 6 is a similar view of the lower portion of another modified form of the unit; and

Fig. '7 is a somewhat similar fragmentary view, showing still another modification.

In the embodiment which is illustrated in Figs. lto 3 inclusive the new unit is shown applied to the gallery I0 of a lamp of the construction shown in Davis Reissue Patent No. 18,061. This gallery includes inner and outer wick tubes II and I2, a wick I3, a ame spreader I4, a perforated baille I5, a burner cone I6, a perforated cylinder I'I provided with an inturned rim I8, and a perforated basket I9.

The unit itself includes a ring 20, an arched wire 2| and a mantle 22. The ring 20, which forms the base of the unit, is of slightly conical shape and is adapted to .fit down snugly over the correspondingly shaped upper portion 23 of the burner cone I6 in the gallery. The ring 20 is of approximately the same height as the upper portion 23 of the cone I6 and is provided at its upper edge with an inwardly and downwardly turned rim 24, which rim serves as the directing 1937, Serial No. 168,686

lip for the cone I6 when the unit is applied to the gallery. The wire 2| is secured at its ends to the sides of the ring 20, the ends of the wire being bent at substantially right angles to the sides of the same and tapered at 25, and the sides of the ring being provided with horizontally opening sockets 26 into which the bent wire ends are wedged. This form of connection permits the wire 2| to be quickly and easily assembled with the ring 20 after the mantle 22 has been suspendedfrom the center of the upper portion of the wire. The sockets 26 are preferably provided intermediate their ends with small indentations 21 which snap into correspondingly shaped indentations 28 in the tapered ends of the wire and aid in securing the ends against withdrawal from the sockets. The sockets 26 are preferably located with their lower edges about ush with the bottom of the ring 20. The mantle 22 is suspended from a loop 29 in the top of the wire by means of a hanger 30 mounted in the upper open end of the mantle. The sides of the wire 2|, immediately above the lower .ends of the same, are bowed outwardly a little with respect to such ends and are notched with one or more line Vcorrugations 3|, whereby to engage resiliently with the inturned rim I8 of the cylinder on the gallery and prevent the unit from becoming accidentally dislodged. After the ring.

20 has been seated snugly on the upper portion of the burner cone I6 the engagement of the sides of the wire 2| with the inturned rim I8 of the cylinder II Will keep the ring 20 from working olf its seat. In applying the unit to the gallery, or in removing it therefrom, the sides of the wire 2| are intended to be pressed toward each other a little in order to clear the locking edge of the inturned rim I8.

The lower end of the mantle 22 is suspended above the inturned rim 24 of the ring 20, in slightly spaced relation to the latter, and is maintained in centered relation to the inturned rim 24 by means of a second ring 32. The ring 32 is provided with a lower conical portion which is tightly sleeved over the upper correspondingly shaped end of the ring 20, in xed association with the latter. Above the top of the ring 20 the ring 32 is provided with an upstanding rim 33, which rim is slotted vertically to provide a large number of circumferentially spaced tongues 34. These tongues surround the lower end of the mantle 22, normally in slightly spaced relation to the latter, and center the mantle with respect to the edge of the inturned rim 24.

A unit of the construction described is light, strong, inexpensive to manufacture and assemble, and easy to apply to the gallery of a lamp. Its design, with respect to the size and shape of the inwardly and downwardly turned rim 24 and circumferentially spaced upstanding tongues 34,

lofi

results in improved illumination,` the mantle becoming quickly incandescent throughout an increased area as soon as the lamp is turned on and maintaining such incandescence Without fluctuation as long as lit.

In the modification shown in Figs. 4 and 5 the lower ends of the wire are secured in sockets 36 which project below the lower edge of the unit. In all other respects the unit is the same. In the modification shown in Figure 6 the upper outside ring is omitted and the tongues 31 used for centering the lower end of the mantle are formed from the lower ring 38, the tongues being l.

cut from the conical portion of the ringl and projected upwardly about the outer edge of the inturned rim 39.

In.the modification shown in Fig. '7 the bent ends 40 of the wire are secured to the lower ring by being threaded through loops il struck outwardly from the surface of the ring.

I claim:

1. A combined mantle support and burner cap for a blue ame lamp of the wick type including a gallery, comprising a ring for sleeved association with a portion of the gallery, an arched wire secured at its ends to the sides of the ring, a mantle suspended from the wire, and means for centering the lower end of the mantle above the ring, the sides of the Wire above the ends of the same having gallery engaging portions abutting a surrounding portion of the gallery when the ring is sleeved over the first mentioned portion of the gallery, whereby to prevent the unit from becoming accidentally dislodged from the gallery.

2. A combined mantle support and burner cap for a blue flame lamp of the wick type including a gallery, comprising a ring for sleeved association with a portion of the gallery, an inturned rim at the top of the ring, an arched wire secured at its ends to the sides of the ring below the rim, a mantle suspended from the wire, and means for centering the lower end of the mantle above the rim, the sides of the wire above the ends of the same being so constructed and arranged as to bear resiliently outward against a surrounding portion of the lgallery when the ring is sleeved over the first mentioned portion of the gallery, whereby to Vyieldingly resist removal of the unit from the gallery.

3. A combined mantle support and burner cap for a blue ilame lamp of the wick type including a gallery, comprising a ring for sleeved association with a portion of the gallery, anl inturned rim at the top of the ring, an arched wire secured .at its ends to the sides' of the ring below the rim,

a mantle suspended from the wire, and means for centering the lower end of the mantle above the rim, the sides of the wire immediately above the ends of the same being set outwardly with `respect to such ends and notched so as to index resiliently with a surrounding portion of the gallery when the ring is pressed down over the first mentioned portion oi' the gallery, whereby to prevent the unit from becoming accidentally dislodged frcm the gallery.

4. A combined mantle support and burner cap for application to the gallery of a blue iiame lamp of the wick type, comprising a conical ring for `downwardly wedging sleeved association with a correspondingly shaped portion of the gallery, an inturned rim at the top of the ring, a second conical ring secured to the iirst ring about the upper portion of the latter, an upstanding rim on the #second ring above the inturned rim on the rst ring, which upstanding rim is slotted vertically to provide a large number of narrow circumferentially spaced tongues, an arched wire secured at its ends to the sides ofthe first ring below the second ring, and a mantle suspended from the wire with its lower end centered over the inturned rim of the first ring by the upstanding rim of they second ring.

5. A `combined mantle support and burner cap for application to the gallery of a blue flame lamp of. the wick type, comprising a ring for sleeved association with a portion of the gallery, an arched.' wire secured at its ends to the sides of the ring, a mantle suspended from the wire, and means for centering the lower end of the mantle above the ring, theends-of the, wire being bent atsubstantially right' angles to the sides of the same, and the sides of; the ring bein-gY provided with horizontallyV opening sockets intol which thefbent wire ends vare turned and secured. .2

6. A. combined mantle support and burner cap for application to the gallery of ablueY iiame lamp of the wick type, comprising a ring for sleeved association with a portion of the` gallery, an arched wire secured at its ends to the sides of the ring, a mantle suspended from theA wire, and means for centering the lower end of the mantle above the ring, the endsl ofthe wire beingY bent at substantially right angles to the sides of the same and tapered, and the sides o-f'the ring being provided with horizontally opening sockets into which the bent wire ends are turned and wedged.

'7. A combined mantle support and burner cap for application to the gallery of a blue flame lamp of the Wick type, comprising a ring for sleeved association with a portionl of the gallery, an arched wire secured at its ends to the sides of the ring, a mantle suspended from. the wire, and means for controlling the flow of air to the lower portion of the mantle consisting of a perforated shield surrounding the lower portion of the mantle.

8. A combined mantle support and burner cap for application to the .gallery of a blue flame lamp of the wick type, comprising a ring for sleeved association with a portion of the gallery, an ached wire secured at its ends to the sides of the ring, a mantle suspended from the wire, and means for controlling the flow of air to the lower portion of the mantle consisting of a downwardly slotted flange on top of the ring surrounding the lower portion of the mantle.

9. A combined mantle support and burner cap for a blue flame lamp of' the wick type including a gallery, comprising airing for sleeved associai tion with a portion of the gallery, an arched wire secured at its endsrto the sides of the ring, a mantle suspended from the wire, and resiliently yieldable holding means associated with the ring for frictional engagement with a surrounding portion of thegallery when the ring is sleeved over the rst mentioned portion of the gallery, whereby to prevent the unit from becoming accidentally dislodged from the gallery.

10. A combined mantle support and burner cap for application to the gallery of a blue iiame lamp of the wick type, comprising a ring having means for centering the same with respect to a portion of the gallery, an arched wire secured at its ends to the sides of the ring, a mantle suspended from the wire, and means for controlling the flow of air to the lower portion of the mantle consisting of a perforatedshield surrounding the lower por tion of the mantle.

HARRY RINNMAN. 

